Pregnancy ?

Bf didn't pull out 2 weeks ago period is supposed to start in 6 days. I have a gut feeling I am. But all the rest I've taken are negative so I know I'm taking them to soon. I'm having discharge white egg looking and sometimes watery.  sore boobs no appetite. Dr said I could have symptoms right away. What'd do you guys think high chance or low chance of pregnancy. Also take meds that's prolly why they are coming out negative. I take Paxil, Wellbutrin, lamitil, klonopinon. Could that be why they're coming out negative??